Measurement of Diameter several instruments are used for measuring the diameters of trees depending on such circumstances as the position and condition of the part of the tree that is to be measured, the degree of accuracy required, and the portability, etc., of the instrument:

Related Mcqs:

1. Measurement of height there are many instruments, which can be used for this purpose; some of them are well suited to certain conditions and unsuited to others:

   A. The transit
   B. The Abney Level
   C. The Forest Service Hypsometer
   D. The Christen Hypsometer
   E. All of the above

2. It has been possible to raise the yield of resin from chir pine from the existing 1.5 kg per tree to 3.5 kg on the average per tree by using the American Bark Hack method in conjunction with ______ sulfuric acid:

   A. 30%
   B. 40%
   C. 50%
   D. 60%

3. Tree marriages is a symbolic nuptial ceremony or union of a person with a tree and is widespread in _________.

   A. India
   B. China
   C. Malaysia
   D. Japan

4. The earliest species of tree still surviving is the Maidenhair tree (Ginkgo biloba) of Zhexiang, ______, which first appeared about 165,000,000 years ago, during the Jurassic era:

   A. Korea
   B. Japan
   C. China
   D. Malaysia

5. Measurement of felled tree material in forest mensuration is / are:

   A. Stem
   B. Branches
   C. Crown
   D. Bark
   E. All of the above

6. Dominant tree: Including all trees which form the upper most leaf canopy and have their leading shoots free. These are usually sub-divided into:

   A. Predominant trees comprising all the largest trees which determine the general top level of the canopy
   B. Codominant trees which fall short of this, averaging about 5/6th of the height of predominant
   C. Trees with forked leader and similar defects
   D. All of the above

7. Common combinations of the agroforestry system in Pakistan are: Trees species: Agricultural crops grown with trees:

   A. Poplars: wheat / maize / turmeric / sugarcane / vegetables / fodder
   B. Eucalypts: wheat/sunflower/tomatoes/potatoes/chilies
   C. Simal: maize/sunflower/vegetables/fodder
   D. Shisham: turmeric/wheat/maize/vegetables
   E. All of the above

8. The growth of trees can be measured in the form of:

   A. Diameter
   B. Height
   C. Volume either of standing timber
   D. All of the above

9. The number of trees required as a basis for a satisfactory table depends upon:

   A. The grouping adopted
   B. The precision required
   C. The deviations of individuals tree volumes from the means in each group
   D. All of the above

10. ________ is merely a modification of the uniform system where large quantities of advance growth of various ages and size even up to trees of 40 cm diameter are retained as part of the future crop:

    A. Irregular Shelterwood system
    B. Coppice system
    C. Both (a) & (b)
    D. None of these